Distributed Air Traffic Control — I. Theoretical Studies
نویسنده
چکیده
In this first part of our paper, we introduce some basic concepts and terminology of distributed planning, and describe a novel CoordinatorCoworker structure — a control mechanism that can dynamically reorganize the planning system in response to the tasks at hand. Coordinators get either self-appointed in unambiguous situations or selected through a unique and inexpensive nomination/confirmation process. The matching of tasks and coworkers is accomplished with minimum message passing and processing, by using appropriate meta-knowledge about the status of the network of nodes. Connections can be initiated by both coordinators and coworkers, leading to optimum load balancing. A hierarchically organized set of Distributed Scratch Pads supports the Coordinator-Coworker mechanism. It is the medium for information exchange and also provides the basis for "self-repairing" in a graceful degradation mode whenever individual nodes become inoperational. We discuss the problems of Air Traffic Control and describe the kernel design of the airborne processors in a Location Centered, Cooperative Planning System. Finally, we explain the simulation-based planning process and its timing and selection considerations.
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